* A brand name: "iFly" is the name of a popular indoor skydiving company.
* A misspelling: It could be a misspelling of "I fly," which would be a statement about flying.
* An abbreviation: It could be an abbreviation for something else, like "I follow you."
To understand the meaning of "ifly," you need more context. Could you please provide more information about where you encountered this word?